Swivel-gear joint and housing



June 26, 1923-. v

1,459,958 J. K. OLSEN SWIVEL GEAR JOINT AND HOUSING jy Filed March v50. 1922 2 Sheets- @d g, 2 W'JM gi@ /W 'B n) JEJJ l) may@ i1" il QQ l C- g.

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, *5 VEZ/ZZ 02661@ 2 Sheets-Sheet 2 June 26, 1923.

' J. K. OLSEN swlvm. GEAR JOINT AND Housine /Fled March l 30 1922 nallyby its head, C1. The other end ot thev the housing member, A, as it turns with respect tothe housing member, B, about the bolt which is fnedin the latter member. On the bolt, C, there are journaled gears, F and G, preferably as shown, integral `witlieach other, the gear, F, meshing with and being y driven by the gear, D, andthe gear, G,

4soft metal die castings.

meshing with and driving the gear, Fi.' The direction of rotation, as indicated by the arrows on Figures l andQ, causes the thrust of the shaft, d, to be outward and the gears, D and E, being direct bevel gears, the thrust of the shaft, e, is. also outward, without regard to the directionof rotation. In general., the thrust ot the unitary gear members, F, G, is toward the head of the swivel bolt, C; but the reaction to the resistance or the driven gear and shaft to the driving action is liable `to distribute the thrust of this shaft more or less equallyv in both directions. In View of these thrusts, wearing washers are provided` 'on the several shafts to take the thrust, said wearing washers being engaged non-rotatably with the die casting housing members where they seat thereon so that no Wear vof rotation shall be imposed upon the The same precait tion is employed. with respect to the wearing of washers or acingb, M and M1, interposed vbetween vthe two housing members at their seating planes; and these will be firs-t de- ;i-scribed. These wearing plates, M and M1.

are vconstructed for centering the two housl 'ing members upon each other, the facing sides of said housing members being first formed for a ylike purpose with allowance for the interposition ot the wearing plates,

M and M1. The facing surfaces of the housing members, and correspondingly the bearing plates, comprise-a directly trans-axial portion at the margin of the housing cavity, succeeded by substantially cylindrical or circum-aXial portion, in turn succeeded circumferentially there-about `by another directly trans-axial portion, and terminated by an outer marginal portion or' truste-conical Vform so that the two wearing plates ot washers are adapted to seat nested one within the other, as clearly seen in Figures l, l and 5. Referring to the two wearing washers, M and M1, the inner marginal qtrans-axial portion is engaged by the reference letter, m., and the next outer cylindrical portion by a reference letter, m1, succeeding trans-axial portions by m2, and the outer flaring frusto-conical portion between the cylindricalv portions andv alsor between the intermediate and transaxial portions (designated in this term by letters, a5 and a6. Inthe form shown in Figure 5 in which the curvilinear outline isL more derinitelyy accentuated, they two parts, W, W71,- corresponding to M and M1, are respectively.dimensioned so that when seated upon each other at thetransaxial and outer bearing portions, crevices remain between the bends as seen at fw?, and we. These details of deviation of Figures 4t and 5 trom Figure l are somewhat preferential because they tend to the admission of grease between the two wearing plates. v

For engaging the wearing plates with the housing members respectively, leach or' the housing members is provided at some point in the margin of the housing cavity at the seating plane, with a notch intowhich a finger is struck or'bent from the wearing washer, as seen at al, which is a notch in the margin of the cavity, a, of the member, A, engaged by a finger, m5, struckbach from the general lplane ot' the inner marginal flange, m1, of the washer or wearing plate, hi, and as seen in the notch, formed in the margin of the cavity of the member, o, into which a i'inger, m6, struck from theinner marginal iiortioinm, of the-member, M1, is folded. These notche and engaging ingers may be duplicated at opposite points or"l the housing cavity marginal portions, as indicated in Figure l. It may be understood that a similar expedient may be employed whenthe forms of the plates are as shown in Figures 4 and 5.

For the bearing of the driving shaft, d, steel bushings, D5 and D", are driveninto the member B, at the inner and outer ends of the cavity therein, leaving between said bushings an interval shown at 57. This interval is left for the purpose of admitting grease from the general cavity; and tor the purpose of such admission there are formed in the member, B, grooves 58, 58, wide or deep mouthed at their opening into the main cavity of the housing, and tapering back to the space, 57,-into 'which they open, as seen clearly'in Figure 2. For the driven shaft, e, there is provided 'a steel bearing member,

' between said two housingmembers, said washers being annularly' and concentrically .corrugated forseating and centeringupon each other` the corrugations having one wall substantially cylindrical and the opposite i wall fiaring vor frusto-conical, the fiaring areas and the direct transaxial areas of the washers being related to each other for seating simultaneously, and thebends between the transaxial andthe cylindrical 'areasonthe one-hand,'and vbetween the cylindrical and the flaring areas on the other hand being relatively shaped in the two washers for spacing the washers apart at said bends when the transverse and flaring areas areseated. Y v

5. A .swivel `gear joint comprising two sott' metal* gear housing members,` each adapted for housing` a pair of intermeshingk gears and. for seating upon each other ata plane transverse tothe axis of the two intermediate gears ot the series, the inleading andv ou'tleading shafts having interposed atthe ends ot their journal bearings for taking the thrust oi' power-transmission, a plurality of hard metal washers, the washer adjacent to the journal bearing being provided with a linger engagement with said bearing to prej 1 continuous train and `adapted for seating vent its rotation thereon and `limit the wear to the washers; y 1 i j 6. ln a swivel gear joint comprising two G Jear housing members, each adapted for housing `a pair `ot intermeshing gears.,l two pairs of gears being arranged in a continuous train of which the two intermedia-te gears are rigid with each other, said housing members being adapted for seating upon each other in a. vplane transverse to the aXis or said rigidv gears, a journal bearing bolt on which said rigid gears are journaled and which secures together the two housing mem bers* for their yswive'ling action upon each other, said bolt having at one end a head and ,being provided withfa hard metal bushing for journaling and stopping it at that end and being threaded `:for screwinginto the housing member at theother end, and means 'for making it fast against rotation at said i screwed-in end.

7. ifi swivel gear joint comprising two soit metal gear housing members,r each adapted for housing a pair of intermeshing gears,

the i'oursearsbeing arranged in a continu'- e) i C C ous train of which thetwo intermediate gears are rigid with each other, a pivot bolt se,- curing the two housing members together andafording journal bearing for said rigid and intermediate gears, said housing membersrliaviiig theirA cavities communicating i'reely at the plane of 'their junctionl with cach other; hard metal bushings for tliein' Vner and outer ends of the inleading and outieading shafts, the two bushings of each shait being spaced apart longitudinally to provide an annular grease cavity between them around the shaft and the inner end oil:

lintermediate gears of the train being ,unif

tary and the housing members being adapted for seating upon each other in a plane transverse to the axis oi said unitary gears, a-

journal .bearing bolt which secures the two housing members together and' affords va journal bearing for said unitary gear, said unitary gear having intermediate the two gear members thereof ing to the journal bolt. n

9. ii swivel gear joint comprising two gear housing members, each. adapted for housing a pair of intermeshing gears constituting a that of the gear on said outleading shaft.

wherebysaid outleading shaft with its .gear

mountedin said sleeve may be insertedbod ily 'into the other part of saidrhousing member, and l'means for `keying said inserted sleeve in place therein.

grease apertures leadln testimony whereof, .l liavehereunto set my hand at Chicago,lllinois, this 27 day ofl liarcli, 1922. i

'f JOHN K. OLSEN. 

